Improved machine for coiling metal pipe



which project inward to form the UNITED STATES PATENT OFFICE.

rErEEv L. WEIMEE, on LEBANON, PENNsYEvANIA.

IMPaovED MACHINE FoP. colLlNG METAL PIPE.

Specification forming part of Letters Patent No. 22,044, dated November 9, 1858.

To all vwhom it may concern:

Beit known that I, PETER L. WEIMER, of Lebanon, in the county of Lebanon and State of Pennsylvania, have invented a new and useful Machine for Coiling or Bendinginto Coils MetalzfPlpe either Het or Cold; and I do hereby declare that the iollowing is a full, clear, and exact description of the construction of the same, reference being had to the annexed drawings, making partof this specification, in which Figure 1 is a side View. Fig. 2 is an'end view. Fig. 3 is a view of the movable groove `and roller from behind br opposite side to Fig. 1. Fig. 4. is a top view of the movable groove, the letters l of reference corresponding in all figures." Fig. 5 is an arrangement A by which the roller is dispensed-with, and may be considered a modification of thesame machine for producing vthe same eife'ct.

The nature of my invention consists in providing a movable groove or die. for the `purpose of bending either hotV or coldmetal pipey into coils,`which obviates the grooved cone or cylinder and enables .the` coil to bev removed from the cone or cylinder without hinderance, as said cylinder or cone is a plain surface and made solid.

In order to enable others skilled inthe arts to make and'use my invention, I will proceed to describe its construction and operation.

' A A is a shaft supported in the bearings B B. On one end of 'thisl shaft is xed the cross-levers C. The other endv is bored ont taper to receive the cone or cylinder D, on which the pipe is to be coiled, which" cone or cylinder is secured by the key E. F is a cone with a plain surface bored and fitted on the shaft A and secured by the key N.. -On the surface of F isplaced a coil of square solid iron, which coil is secured by small screws.

G is a square shaft, also sliding in the bearings B. 0n one end ot` this shaft on a journal works the lever H. cone D forms the groove for the under or side ynearest the cone D. The opposite side' of the groove is formed by the grooved roller I.

L is aweight movable on lever H.- Fig.4 shows a top view ci' Il, M N being the lips, movable groove or die.

The end of lever H under .gr

K is an arm secured to the shaft Gr. Said arm projects inward and upward, its end embracing the square coil on the cone F.

which passes the key to fasten the end of the pipe.

The die or'movable groove can b e so modified as to dispense with the roller, using in its stead the die or groove shown at Fig. 5. Itwill be observed that in both cases the die or groove forms a circular opening at the bending point of the pipe, which opening guides the pipe along the cone or mandrel, and at the same time prevents the pipe from flat' -tening and loosing its circular section.

The manner of operating the above-described machine is as follows: The pattern .coil being secured on the cone F, Vthe lip of the arm K embracing the first coil, the

end ofthe shaft. The end of the piece oi' pipe to be coiled is inserted into the dieN and lfastened to the lug O by the. key.

the shaftA, the coil en F causes the shaft G to move outward and lay onto the cone D, an exact counter of the coil on F, the weight L at the same time being at the end of the lever,

moved from the end of Gr and the weight L removed, a stroke ot' a wooden'mallet loosens the coil on D, when it and lever `H is slipped from oi the end. The end of the pipe is now vdrawn through the die or groove, releasing H, the handles U rotated backward until K comes to its nposition when tirst started. -H is now replacedand the machine is ready for another coil.

v'lhe peculiar advantage arising from the arrangement as herein represented is that one-inchcaliber pipe can be coiled into so inches .inside diameter of coil at small end-a lthing utterly impossible to accomplish with a ooved mandrel.

O is a lug cast on the cone D, through plain-turned cone D is then fastened into the By rotating i thus keeping the dieor groove close to D. When the coil \is completed, the pin is resmall a coilas not to measure more than two To the mechanic it willbe apparent that the above-descr? wed machine may be variously modifiedviz., theV shaft G may be stationary and shaft A'have the lateral play to produce the coil. ShaftGr may also be placed directly under shaft A and dispense with lever H, fastening the die or groove on the end of the shaft G. In place of F may be substituted :tleerew would', However; only amount to mechanical l equivalents.

1. The ceiling of hot or cold metal pipe on a plain cone o'r cylinder'by means of a movable groove. or die, as' herein fully described and specified.

i 2. Feeding' thc movable grooye or die for- Ward SQ as to form the Oil by means of a Pat,

ternooilor itsequivalepufagherein desmbed and specified, Y

Wii'neiSseS/:y f f WILLIAM REINOCBL,

I claim es my invention,- and desire to secure -by Letters Patent, is 

